package com.atguigu.order.config;

import org.springframework.amqp.core.*;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import java.util.HashMap;
import java.util.Map;

@Configuration
public class MyRabbitmqConfig {
  @Bean
  public Exchange orderEventExchange() {
    /**
     *   String name,
     *   boolean durable,
     *   boolean autoDelete,
     *   Map<String, Object> arguments
     */
    return new TopicExchange("order-event-exchange", true, false);
  }

  /**
   * 延迟队列
   *
   * @return
   */
  @Bean
  public Queue orderDelayQueue() {
    /**
     Queue(String name,  队列名字
     boolean durable,  是否持久化
     boolean exclusive,  是否排他
     boolean autoDelete, 是否自动删除
     Map<String, Object> arguments) 属性
     */
    Map<String, Object> arguments = new HashMap<>();
    //死信交换机
    arguments.put("x-dead-letter-exchange", "order-event-exchange");
    //死信路由键
    arguments.put("x-dead-letter-routing-key", "order.release.order");
    arguments.put("x-message-ttl", 60000); // 消息过期时间 1分钟
    return new Queue("order.delay.queue", true, false, false, arguments);
  }

  /**
   * 普通队列
   *
   * @return
   */
  @Bean
  public Queue orderReleaseQueue() {

    Queue queue = new Queue("order.release.order.queue", true, false, false);

    return queue;
  }

  /**
   * 创建订单的binding
   *
   * @return
   */
  @Bean
  public Binding orderCreateBinding() {
    /**
     * String destination, 目的地（队列名或者交换机名字）
     * DestinationType destinationType, 目的地类型（Queue、Exhcange）
     * String exchange,
     * String routingKey,
     * Map<String, Object> arguments
     * */
    return new Binding("order.delay.queue", Binding.DestinationType.QUEUE, "order-event-exchange", "order.create.order", null);
  }

  @Bean
  public Binding orderReleaseBinding() {
    return new Binding("order.release.order.queue",
      Binding.DestinationType.QUEUE,
      "order-event-exchange",
      "order.release.order",
      null);
  }

  @Bean
  public Binding orderReleaseOrderBinding() {
    return new Binding("stock.release.stock.queue",
      Binding.DestinationType.QUEUE,
      "order-event-exchange",
      "order.release.other.#",
      null);
  }

  /**
   * 商品秒杀队列
   *
   * @return
   */
  @Bean
  public Queue orderSecKillOrderQueue() {
    Queue queue = new Queue("order.seckill.order.queue", true, false, false);
    return queue;
  }

  @Bean
  public Binding orderSecKillOrderQueueBinding() {
    //String destination, DestinationType destinationType, String exchange, String routingKey,
    // 			Map<String, Object> arguments
    Binding binding = new Binding(
      "order.seckill.order.queue",
      Binding.DestinationType.QUEUE,
      "order-event-exchange",
      "order.seckill.order",
      null);

    return binding;
  }
}
